Rare and Highly Important Fancy Intense Green, coloured diamond and diamond ring

VAT applies to hammer price and buyer's premium

Auction Closed

November 8, 06:50 PM GMT

Estimate

1,180,000 - 2,090,000 CHF

Lot Details

Description

Property of a Lady

Rare and Highly Important Fancy Intense Green, coloured diamond and diamond ring

Set with a cut-cornered square modified brilliant-cut fancy intense green diamond weighing 4.42 carats, flanked by cut-cornered rectangular modified brilliant-cut diamonds, the gallery pavé-set with brilliant-cut diamonds and diamonds of pink tint, size 50, maker's mark.

Accompanied by GIA report no. 1102900161, stating that the diamond is Fancy Intense Green, Natural Colour, VS2 clarity.

Please note that the diamonds of pink tint have not been tested for natural colour origin.

Please note that lot 621 is currently unmounted and can be remounted after the sale.

Fancy Green Diamonds

Fancy green diamonds of natural colour origin are the rarest and most highly sought-after gemstone. Their colour is caused either by exposure to naturally radioactive minerals and fluids in the earth’s crust, following emplacement, or by complex structural defects involving the trace elements nitrogen, hydrogen and nickel. Natural green diamonds make up only 0.07% of all diamonds submitted to the Gemological Institute of America (GIA) over the last ten years, making their study particularly challenging.